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As some people are having trouble upgrading via OTA to B895, I added a folder containing an untouched version of B895 (just as it came from Huawei). To flash it, repeat steps 5-6, flashing B895 at step 5 instead of B892.

Final note: I found this to be the "cleanest" way of downgrading to GB. It will work for any version of ICS/JB. There are faster ways of doing this but I found this to be the only one that restores the phone to a version that is upgradeable via OTA.

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Well my luck ran out on first phone ( bricked because of unlockbootloader.exe on GB ) second replacement ( this is Australia here :) ) upgrade to B944 first then downgrade to GB few times ( UK one B895 ) then upgrade again to B952 after flashing relock bootloader by jsevi phone got stuck on some signature fail crap only way to fix it was downgrade back to GB B895 again...so yeah maybe I'm lucky after all..:)

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As a rule, the phone needs to be connected to the pc only when you are launching an app on the pc (e.g. when you are rooting).

So, before launching the app RootG300.exe at step 1, you need to make sure the phone is connected to the pc.

At step 2, you need to copy the .apk somewhere on the sdcard (copy via usb or remove the sdcard and insert it into pc's card reader, it doesn't matter), then, in Settings>Applications make sure "Unknown sources" is ticked. After that, open a file manager on phone, browse to the folder you copied the .apk file into and launch it.

When I said "archive folder 5irom" i meant to compress the folder into a .zip or .rar archive (or whatever format you prefer) and copy the archive into multiple safe places (computer/usb/dvd). The point is... if, for some reason, you lose this file, you'll end up with a zero-imei phone that you won't be able to use in any mobile network.

At step 4 the phone doesn't need to be connected to the pc. Just make sure you copy the folder dload from the middle package archive to the root of your sdcard.

"Rooting" will enable the root user, that is the user with full-access permissions. That will allow you to modify system files (you need this for imei backup and restore), uninstall locked apps and much more.

After step 7, the phone will have the exact software it came with from Vodafone, but it will also be rooted. Of course, rooting will void your warranty. In fact, the whole process of downgrading (especially rooting and changing IMEI) is considered somehow "dangerous", but if you follow this tutorial step by step, you'll restore the phone to the original software it came with.

However, if you need/want an un-rooted phone (EXACTLY how it came from Vodafone) you can re-apply step 5 (flash B882) after step 7. And the funny thing is Vodafone will never know that you upgraded, downgraded, rooted, changed IMEI, etc. Basically you will "re-gain" you warranty.

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After some initial problems (because I'm using XP, and for some reason the Windriver failed to work), I eventually completed it .

Turns out that it wasn't a Windriver issue, it was the fact that I wasn't using the original usb lead.

Anyway I wanted to backup everything to HiSuite before starting the downgrade, so the usb issue held me back for a few days before realising I was using an identical usb cable which didn't want to work. I eventually found the original usb cable.

So.....I followed the tutorial and am back on GB. Yeah!!

Thanks again vhristenco.

What would we do if good people didn't write tutorials to help us out?

Edit: I've just discovered that I now cannot connect to wifi since downgrade to GB. It worked at first and allowed me to accept OTA updates B888 & B892, but now I have no access to wifi since accepting B892 to look for the update to B895.

I have no normal signal here, and rely on the connection to wifi as I use a THREE "Home Signal Box" to get any reception at all for calls & txts.

It keeps reaching the stage of "Obtaining IP address", fails & repeatedly scans again in a never ending loop!!!

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Initially, after doing the downgrade, I think the version number was something like B885, and wifi must have been working because I accepted OTA upgrades via the wifi to B888 & then B892. It was definitely two updates to get me to B892.

But that is when the wifi stopped working.

The router is definitely working ok, because my laptop is working fine using the wifi router.

I did reset the router to see if it helped, but no luck.

My laptop still connects to it fine, but the phone is in a continual loop of:-

"scanning"

"obtaining IP address"

"disconnecting"

"scanning"

The phone wifi settings shows the router, with signal strength as "excellent". It just won't make a connection.

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Well, you could try connecting G300 to another wifi network to confirm there's a problem with the phone, not your router.

If you cannot connect to any wifi network, then you can try resetting the phone to default settings.(Settings > Privacy > Factory data reset).

If that doesn't solve the problem, put the device in recovery mode (power off, remove battery, wait for 3-4 seconds, then power it con while keeping the Volume UP button pressed). Then choose to "Format data/cache" (scroll using volume buttons) then confirm with the power button. After that, reboot.

BTW, you didn't restore any system files that you backed up on a previus rom, did you?

This behavior is strange... I downgraded quite a few G300s and none of them had this problem.

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And I then done the recovery mode thing, formatting the data/cache. No change.

The only restore I done was via HiSuite which restored the apps, messages, email, accounts etc, and I’ve never used any other roms. I simply done the original update from GB to ICS using the package on the Huawei site.

If you have any ideas, I would welcome them, because I really need to get the wifi working.

Do you think I should go through your tutorial again? Is that even possible at this point?

Or could I update to ICS via the Huawei site again?

Or is there some other process/tutorial that I could carry out?

I really appreciate you advice by the way. I don’t know anyone with any knowledge of Andoid, so your help is REALLY appreciated.

Pen.

Edit: Ps. I forgot to say. If the worst happens, and I have to return it to Vodafone, Do I have to do any thing to the phone first. ie. "unroot it", or remove that "SuperSU App" which is on it, so they can't blame me for it's current state?